/*
 * *** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * J4Care.
 * Portions created by the Initial Developer are Copyright (C) 2013
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * *** END LICENSE BLOCK *****
 */
package org.dcm4che3.audit.keycloak;

import org.keycloak.Config;
import org.keycloak.events.EventListenerProvider;
import org.keycloak.events.EventListenerProviderFactory;
import org.keycloak.events.EventType;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.KeycloakSessionFactory;

import java.io.File;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * @author Vrinda Nayak <vrinda.nayak@j4care.com>
 * @author Gunter Zeilinger <gunterze@gmail.com>
 * @since Mar 2016
 */
public class Dcm4cheEventListenerProviderFactory implements EventListenerProviderFactory {
    private static String[] JBOSS_PROPERITIES = {
            "jboss.home",
            "jboss.modules",
            "jboss.server.base",
            "jboss.server.config",
            "jboss.server.data",
            "jboss.server.deploy",
            "jboss.server.log",
            "jboss.server.temp",
    };
    private final Set<EventType> includedEvents = new HashSet<EventType>();

    static void addJBossDirURLSystemProperties() {
        for (String key : JBOSS_PROPERITIES) {
            String url = new File(System.getProperty(key + ".dir")).toURI().toString();
            System.setProperty(key + ".url", url.substring(0, url.length()-1));
        }
    }

    @Override
    public EventListenerProvider create(KeycloakSession keycloakSession) {
        return new Dcm4cheEventListenerProvider(Collections.unmodifiableSet(includedEvents), keycloakSession);
    }

    @Override
    public void init(Config.Scope scope) {
        addJBossDirURLSystemProperties();
        String[] includes = scope.getArray("include-events");
        if (includes != null) {
            for (String e : includes) {
                includedEvents.add(EventType.valueOf(e));
            }
        }
    }

    @Override
    public void postInit(KeycloakSessionFactory keycloakSessionFactory) {

    }

    @Override
    public void close() {

    }

    @Override
    public String getId() {
        return "dcm4che-audit";
    }
}
